Design and Synthesis of Building Blocks for PPII‐Helix Secondary‐Structure Mimetics: A Stereoselective Entry to 4‐Substituted 5‐Vinylprolines. Issue 46 (10th December 2018) - Chiha, Slim; Soicke, Arne; Barone, Matthias; Müller, Matthias; Bruns, Judith; Opitz, Robert; Neudörfl, Jörg‐Martin; Kühne, Ronald; Schmalz, Hans‐Günther